The correct factory tire size for a 1997 Jeep Wrangler is P205/75R15.
Tire pressure does not depend on what vehicle you have but what tires you have. What size and type of tires do have on your Jeep
The correct factory tire size for a 1997 Jeep Cherokee is 225/75-15.
The recommended tire pressure for your 1997 Toyota Tercel is dependent upon the type of tire that is currently on the vehicle. In general, the tire pressure will be stamped on the side of the tire.
The recommended tire pressure is listed on the drivers door post.
Tire pressure is 33psi, give or take 2 lbs. Always go by the manufacturer's recommendations for the vehicle, NOT the maximum tire pressure on the tire.
Tire Pressure Monitor
The normal tire pressure for a 1997 Cougar should be 32 psi. The tire side wall has the exact rating for the psi stamped into it from the tire factory.
The tire will have the pressure on the sidewall. I have seen 44psi there, but, that feels a little hard to me. I have kept them at 40psi and been just fine. The pressure listed on the side of the tire is the max safe pressure for that tire. The recommended pressure for a Jeep Liberty is on the label affixed to the driver's door jamb. It is more in the 30-35 psi range.
The very best you can do is to leave your tire pressure alone. Reducing it will result in potential loss of control as well as damage to your tires and will not result in any better handling in snow. Set it to manufacturers suggested PSI.
The spare tire cover needs to match size of tire.
35 psi suggested by dealer